CN111955857A - Mushroom head type injection hook and fastening tape comprising same - Google Patents
Mushroom head type injection hook and fastening tape comprising same Download PDFInfo
- Publication number
- CN111955857A CN111955857A CN202010784002.XA CN202010784002A CN111955857A CN 111955857 A CN111955857 A CN 111955857A CN 202010784002 A CN202010784002 A CN 202010784002A CN 111955857 A CN111955857 A CN 111955857A
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- CN
- China
- Prior art keywords
- head
- hook
- mushroom
- type injection
- mushroom head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002347 injection Methods 0.000 title claims abstract description 56
- 239000007924 injection Substances 0.000 title claims abstract description 56
- 235000001674 Agaricus brunnescens Nutrition 0.000 title claims abstract description 54
- 239000000463 material Substances 0.000 claims description 5
- 239000000758 substrate Substances 0.000 claims description 5
- 239000004744 fabric Substances 0.000 description 12
- 238000004026 adhesive bonding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A44—HABERDASHERY; JEWELLERY
- A44B—BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE
- A44B18/00—Fasteners of the touch-and-close type; Making such fasteners
- A44B18/0003—Fastener constructions
- A44B18/0015—Male or hook elements
- A44B18/0019—Male or hook elements of a mushroom type
Landscapes
- Slide Fasteners, Snap Fasteners, And Hook Fasteners (AREA)
Abstract
The invention provides an injection hook of mushroom head and a fastening tape comprising the injection hook of mushroom head. The mushroom head type injection hook of the present invention comprises a rod portion and a generally planar head portion formed at the tip end of the rod portion, wherein the head portion has structural features including two protrusions protruding in opposite directions, two extensions extending in a direction perpendicular to the direction of the protrusions, and connecting portions formed between bases of adjacent sides of the two protrusions and the two extensions, respectively, so that the inventive mushroom head type injection hook has no significant directional difference in the loop engagement rate in each direction and has an optimum balance in the loop engagement rate and the peel strength.
Description
The present application is a divisional application of the application entitled "mushroom head type injection hook and loop fastener including the same" in chinese application No. 201510880746.0, application date 2015, 12/3.
The technical field is as follows:
the present invention generally relates to mechanical fasteners. More particularly, the present invention relates to a mushroom head type injection hook and a fastening tape including the same.
Background art:
felt-and-loop fasteners are known as mechanical fasteners, such as hook-and-loop fasteners commonly known as "velcro". The felt-type fastener mainly comprises a hook tape (fastening tape) and a loop tape, wherein the hook tape comprises a plastic base material layer and a plurality of shot hooks formed on the surface of the base material layer, and the loop tape comprises a plurality of fabric loops for hooking with the shot hooks on the hook tape to provide a fastening effect. Mechanical fasteners in the form of felt-stick fasteners have been widely used in applications requiring separable bonding of two separate parts, such as in the related art of clothing, footwear, sporting goods, personal hygiene products (e.g., diapers), wire finishing, and the like, due to their easy felt-stick and separation characteristics.
Mushroom head type injection hooks are common hook types on known hook and loop fasteners. The conventional mushroom head type injection hook has a substantially cylindrical hook body portion and a substantially circular head portion formed at the tip end of the cylindrical hook body, as shown in fig. 1. However, when the mushroom-head type injection hook having a round head shape is engaged with a loop of a fabric, the round periphery thereof does not provide a protruding corner for engaging with the loop of the fabric, so that the effective engaging ratio of the hook member with the loop of the fabric is low, and the engaging force is insufficient. In addition, the round-head mushroom-head type injection hook can only form effective hooking when the fabric looped pile is completely sleeved into the round head, although the hooking can provide extremely reliable fastening, the hooked fabric looped pile is broken and damaged during separation, so that after the hook is used for a plurality of times, the fastening capacity of the fastening tape and the fabric looped pile is sharply reduced because the damaged proportion of the fabric looped pile is increased, even no fastening function exists, and the service life is too short.
In order to solve the above-mentioned disadvantages of the known round head mushroom head type injection hook, the present inventors have proposed an improved mushroom head type injection hook design in chinese taiwan patent No. I371247. This improved mushroom head type injection hook has a hook body portion in a substantially quadrangular prism shape and a head portion in a substantially octagonal shape, as shown in fig. 2. The polygonal head has the advantages that a plurality of protruding angles capable of effectively hooking with the fabric looped pile can be provided, the thread gluing rate of the fabric looped pile is improved, the thread gluing effect is continuous, the fabric looped pile cannot be damaged when the fabric looped pile is separated, and the service life of the thread gluing belt can be prolonged. Despite the foregoing advantages, there are deficiencies in the design of such polygonal mushroom-head type injection hooks. For example, the engagement ratio between the polygonal mushroom-head-shaped injection hooks and the loops is different in directionality, that is, the engagement ratio in the longitudinal direction is higher than the engagement ratio in the transverse direction. Further, since such a polygonal mushroom-head-shaped injection hook is engaged with a loop by using a fillet, the peel strength may be insufficient.
The invention content is as follows:
in view of the above-mentioned disadvantages of the known mushroom head type injection hooks, the inventors have triggered their motivation to improve the existing mushroom head type injection hooks. After long-term research and multiple attempts, the inventor of the present invention finally overcomes the difficulties and completes the invention which can effectively solve the disadvantages of the existing mushroom head type injection hook.
An object of the present invention is to provide a mushroom-head type injection hook which can obtain a more balanced effect in an engagement ratio and a peel strength. Further, another object of the present invention is to provide a mushroom head type ejection hook which has no significant directional difference in the engagement rate with the loop in the Machine Direction (MD) and in the Cross Direction (CD).
The above object of the present invention can be achieved by providing a novel mushroom head type injection hook. According to a first embodiment of the present invention, the mushroom head type injection hook comprises:
a rod portion;
a generally planar head formed at the tip of the stem, wherein the head comprises:
two protruding parts which respectively protrude outwards from two sides of the head part, which are opposite to each other in a first direction, in the first direction along part of the length of each side;
an extension portion projecting outwardly from one of two sides of the head portion in a second direction orthogonal to the first direction over substantially the entire length of the side in the second direction, wherein a free end of the extension portion is slightly bent downwardly into a hook shape; and
four connecting portions formed between the two protruding portions and the base portion of the side adjacent to the extending portion, and between the two protruding portions and the side adjacent to the other side of the head portion in the second direction, respectively.
According to a second embodiment of the present invention, the mushroom head type injection hook comprises:
a rod portion;
a generally planar head formed at the tip of the stem, wherein the head comprises:
two protruding parts which respectively protrude outwards from two sides of the head part, which are opposite to each other in a first direction, in the first direction along part of the length of each side;
two extending portions respectively extending outward from two sides of the head portion in a second direction orthogonal to the first direction over substantially the entire length of each side in the second direction, wherein free ends of the two extending portions are slightly bent downward in a hook shape; and
four connecting portions respectively formed between the two protruding portions and the bases of the adjacent sides of the two extending portions.
According to another aspect of the present invention, there is provided a hook and loop fastener comprising:
a substrate layer; and
a plurality of mushroom head type injection hooks integrally formed on a surface of the base material layer, wherein each of the mushroom head type injection hooks includes:
a rod portion;
a generally planar head portion formed at the tip of the stem portion, wherein the head portion includes two projections projecting outwardly in a first direction from respective partial lengths of two sides of the head portion at each side opposite to each other in a first direction, and an extension projecting outwardly in a second direction from one side of the two sides of the head portion at a second direction orthogonal to the first direction over substantially the entire length of the side, wherein a free end of the extension is slightly bent downwardly in a hook shape; and
a plurality of connecting portions respectively formed between the two protruding portions and the base portion of the side adjacent to the extending portion, and between the two protruding portions and the side adjacent to the other side of the head portion in the second direction.
According to another embodiment of the fastening tape of the present invention, the fastening tape comprises:
a substrate layer; and
a plurality of mushroom head type injection hooks integrally formed on a surface of the base material layer, wherein each of the mushroom head type injection hooks includes:
a rod portion;
a generally planar head portion formed at a top end of the stem portion, wherein the head portion includes two protrusions protruding outward in a first direction from respective partial lengths of two sides of the head portion at the respective sides, the two sides being opposite to each other in the first direction, and two extensions protruding outward in a second direction from respective substantially entire lengths of the two sides of the head portion at the respective sides in a second direction orthogonal to the first direction, wherein free ends of the two extensions are slightly bent downward in a hook shape; and
and a plurality of connecting parts respectively formed between the two protruding parts and the base parts of the adjacent sides of the two extending parts.
Other embodiments, aspects and advantages of the invention will become apparent from the following detailed description, taken in conjunction with the accompanying drawings, illustrating by way of example the principles of the invention.
Description of the drawings:
fig. 1 is a perspective view showing a known mushroom head shooting hook structure.
Fig. 2 is a perspective view showing another known mushroom head shooting hook structure.
Fig. 3 is a perspective view illustrating a mushroom head ejection hook according to a first embodiment of the present invention.
Fig. 4 is an end view of the mushroom head ejection hook of fig. 3.
Fig. 5 is a top view of the mushroom head ejection hook of fig. 3.
Fig. 6 is a perspective view showing a mushroom head ejection hook according to a second embodiment of the present invention.
Fig. 7 is an end view of the mushroom head ejection hook of fig. 6.
Fig. 8 is a top view of the mushroom head ejection hook of fig. 6.
Fig. 9 is a schematic perspective view illustrating a first embodiment of a fastening strip according to another aspect of the present invention.
Fig. 10 is a perspective view schematically illustrating a second embodiment of the fastening tape of the present invention.
The specific implementation mode is as follows:
the mushroom head type ejection hook of the present invention will now be described with reference to the embodiment shown in fig. 3 to 8.
Fig. 3 shows a perspective view of a mushroom head type injection hook 300 according to a first embodiment of the present invention, fig. 4 shows an end view of the mushroom head type injection hook 300 of fig. 3, and fig. 5 shows a plan view of the mushroom head type injection hook 300 of fig. 3.
As shown in fig. 3 to 5, the mushroom-head-type injection hook 300 mainly includes a stem portion 310 and a head portion 320 integrally formed with the stem portion 310 at a tip end of the stem portion 310. In this embodiment, the stem portion 310 is generally in the shape of a rectangular column including two perpendicular side walls in a first direction CD (which may also be referred to as the cross direction) and one perpendicular side wall in a second direction MD (which may also be referred to as the machine direction) and one oblique side wall in the second direction MD, as shown in fig. 3 and 4, wherein the first direction CD and the second direction are orthogonal to each other. The head 320 is integrally formed with the stem 310 and has a generally planar shape. The head 320 includes two protrusions 330 respectively protruding outward in the first direction from a part of the length of each of two sides of the head 320 opposite to each other in the first direction CD. In this embodiment, the protrusion 330 is a circular arc protrusion. In addition, the head 320 also includes an extension 340 protruding outward in the second direction from one of two sides of the head 320 in the second direction MD (in this embodiment, this side is the same side as the oblique side wall of the shaft 310) over substantially the entire length of the side, so that the extension 340 has a relatively wide width, wherein the free end of the extension 340 is slightly bent downward in a hook shape. The head 320 further includes four connecting portions 350 formed between the bases of the adjacent sides of the two protruding portions 330 and the extending portion 340, and between the adjacent sides of the two protruding portions 330 and the other side 360 of the head in the second direction, respectively. As shown, in this embodiment, the connecting portion 350 is a circular arc connecting portion having a radius of curvature R ≧ 0.03 mm. The head 320 of the mushroom-head-type injection hook 300 of the present invention has a polygonal outline in a top plan view.
Next, a mushroom head type injection hook 400 according to a second embodiment of the present invention is explained with reference to fig. 6 to 8, in which fig. 6 shows a perspective view of the mushroom head type injection hook 400 of this embodiment, fig. 7 shows an end view of the mushroom head type injection hook 400 of fig. 6, and fig. 8 shows a plan view of the mushroom head type injection hook 400 of fig. 6.
As shown in fig. 6 to 8, the mushroom head type injection hook 400 of this embodiment has substantially the same main structure as the mushroom head type injection hook 300 of the first embodiment, that is, the mushroom head type injection hook 400 of this embodiment also includes a stem portion 410 and a head portion 420 formed at the tip of the stem portion 410. However, the difference between the mushroom head type injection hook 400 of this embodiment and the mushroom head type injection hook 300 of the first embodiment is mainly that the stem portion 410 of the mushroom head type injection hook 400 of this embodiment has two inclined side walls and the head portion 420 includes two extensions 440 in the second direction MD and four connecting portions 450 respectively formed between the respective protrusions 430 and the bases of the adjacent sides of the respective extensions 440, in addition to the two protrusions 430 in the first direction CD. Like the connecting portion 350 of the first embodiment, the connecting portion 450 of this embodiment is also a circular arc-shaped connecting portion having a radius of curvature R ≧ 0.03 mm.
Next, fig. 9 and 10 show a fastening tape 500 according to another aspect of the present invention.
As shown in fig. 9, the fastening tape 500 includes a plastic base layer 510 and a plurality of mushroom-head-shaped injection hooks 300 integrally formed on a surface of the plastic base layer 510. Fig. 10 shows another embodiment of a hook and loop fastener 500, which includes a plastic substrate layer 510 and a plurality of mushroom-head type injection hooks 400 integrally formed on the surface of the plastic substrate layer 510.
The mushroom head type injection hook and the hook and loop fastener including the same according to the present invention can be manufactured by a plastic injection molding method, for example, a manufacturing method disclosed in taiwan patent No. I371247 by the present inventors.
With the unique structural features described above, the mushroom head type injection hook of the present invention has at least the following advantages:
1. since the head of the mushroom-head type injection hook of the present invention is formed with a structure (i.e., a protrusion and an extension) engageable with the loop in both the first direction (transverse direction) and the second direction (machine direction), a loop engagement ratio without a significant difference in directionality can be provided in both directions.
2. Since the extension part of the present invention has a relatively wide width, the protruding angles of the extension part at both ends in the width direction can be engaged with the loop in an oblique direction (i.e., a direction forming an angle with the first direction or the second direction) to provide the mushroom-head type shooting hook with a multidirectional engaging function.
3. The head part of the mushroom head type injection hook of the present invention has a structure reinforcing function at the connection part between the protrusion part and the extension part, so that the protrusion part and the extension part of the present invention have higher mechanical strength to reduce the possibility of the protrusion part and the extension part being damaged by repeated use, and thereby prolong the service life.
4. The free end of the extension of the head of the mushroom-head type injection hook of the present invention is bent slightly downward in a hook-like configuration to provide more positive and effective engagement with the loop and thereby provide higher peel strength.
Although the exemplary embodiments of the mushroom-head type injection hook and the fastening tape of the present invention have been described above with reference to the preferred embodiments shown in the drawings, it is not intended that the present invention be limited to the features and structures described above and shown in the drawings. All other possible modifications and variations of the present invention are within the true scope of the invention, which is defined by the following claims and their equivalents.
Claims (9)
1. A mushroom head type injection hook, comprising:
a rod portion;
a generally planar head formed at the tip of the stem, wherein the head comprises:
two protruding parts which respectively protrude outwards from two sides of the head part, which are opposite to each other in a first direction, in the first direction along part of the length of each side;
an extension portion protruding outward in a second direction orthogonal to the first direction from one of two side edges of the head portion in the second direction over substantially the entire length of the side edge, wherein a free end of the extension portion is slightly bent downward in a hook shape; and
four connecting portions formed between the two protruding portions and the base of the side adjacent to the extending portion, and between the two protruding portions and the side adjacent to the other side of the head portion in the second direction, respectively.
2. A mushroom head type injection hook, comprising:
a rod portion;
a generally planar head formed at the tip of the stem, wherein the head comprises:
two protruding parts which respectively protrude outwards from two sides of the head part, which are opposite to each other in a first direction, in the first direction along part of the length of each side;
two extending portions respectively extending outward from two sides of the head portion in a second direction orthogonal to the first direction over substantially the entire length of each side in the second direction, wherein free ends of the two extending portions are slightly bent downward in a hook shape; and
four connecting portions respectively formed between the two protruding portions and the bases of the adjacent sides of the two extending portions.
3. A mushroom head type injection hook according to claim 1 or 2, wherein the connecting portion is a circular arc-shaped connecting portion having a radius of curvature R ≧ 0.03 mm.
4. A mushroom head type ejection hook according to claim 1 or 2, wherein the stem portion and the head portion are integrally formed as a single body.
5. A mushroom head type ejection hook according to claim 1 or 2, wherein the head has a polygonal profile.
6. A hook and loop fastener, comprising:
a plastic substrate layer; and
a plurality of mushroom-head-type injection hooks according to claim 1 or 2, which are integrally formed on the surface of the plastic base material layer.
7. The fastener according to claim 6, wherein the connecting portion is a circular arc-shaped connecting portion having a radius of curvature R ≧ 0.03 mm.
8. The fastener of claim 6, wherein the stem portion and the head portion are integrally formed as a single body.
9. The fastener of claim 6, wherein the head has a polygonal profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010784002.XA CN111955857A (en) | 2015-12-03 | 2015-12-03 | Mushroom head type injection hook and fastening tape comprising same |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510880746.0A CN106820468A (en) | 2015-12-03 | 2015-12-03 | Mushroom-head projects hook and the magic tape of hook is projected comprising this mushroom-head |
| CN202010784002.XA CN111955857A (en) | 2015-12-03 | 2015-12-03 | Mushroom head type injection hook and fastening tape comprising same |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510880746.0A Division CN106820468A (en) | 2015-12-03 | 2015-12-03 | Mushroom-head projects hook and the magic tape of hook is projected comprising this mushroom-head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111955857A true CN111955857A (en) | 2020-11-20 |
Family
ID=59149776
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510880746.0A Pending CN106820468A (en) | 2015-12-03 | 2015-12-03 | Mushroom-head projects hook and the magic tape of hook is projected comprising this mushroom-head |
| CN202010784002.XA Pending CN111955857A (en) | 2015-12-03 | 2015-12-03 | Mushroom head type injection hook and fastening tape comprising same |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510880746.0A Pending CN106820468A (en) | 2015-12-03 | 2015-12-03 | Mushroom-head projects hook and the magic tape of hook is projected comprising this mushroom-head |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN106820468A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260691A (en) * | 1997-06-19 | 2000-07-19 | 美国3M公司 | Mfg. for capped stem mechanical fastener structure |
| CN1374050A (en) * | 2001-03-08 | 2002-10-16 | Ykk株式会社 | Integral moulded surface fastener, continuous producing method and its continuous producing equipment |
| CN1897841A (en) * | 2003-12-23 | 2007-01-17 | 3M创新有限公司 | Split hook fastener |
| WO2009149909A2 (en) * | 2008-06-11 | 2009-12-17 | Windhager Handelsgesellschaft M.B.H. | Hook-and-loop fastener part and method for the production of a hook-and-loop fastener part |
| CN301650555S (en) * | 2011-01-27 | 2011-08-24 | 台湾百和工业股份有限公司 | Velcro hook |
-
2015
- 2015-12-03 CN CN201510880746.0A patent/CN106820468A/en active Pending
- 2015-12-03 CN CN202010784002.XA patent/CN111955857A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1260691A (en) * | 1997-06-19 | 2000-07-19 | 美国3M公司 | Mfg. for capped stem mechanical fastener structure |
| CN1374050A (en) * | 2001-03-08 | 2002-10-16 | Ykk株式会社 | Integral moulded surface fastener, continuous producing method and its continuous producing equipment |
| CN1897841A (en) * | 2003-12-23 | 2007-01-17 | 3M创新有限公司 | Split hook fastener |
| WO2009149909A2 (en) * | 2008-06-11 | 2009-12-17 | Windhager Handelsgesellschaft M.B.H. | Hook-and-loop fastener part and method for the production of a hook-and-loop fastener part |
| CN301650555S (en) * | 2011-01-27 | 2011-08-24 | 台湾百和工业股份有限公司 | Velcro hook |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106820468A (en) | 2017-06-13 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201120 |